Heat Index

INFORMATION

Heat kills by pushing the human body beyond its limits. Under normal conditions, the body's internal thermostat produces perspiration that evaporates and cools the body. However, in the extreme heat and high humidity common in Louisiana, evaporation is slowed and the body must work extra hard to maintain a normal temperature

Most heat disorders occur because the victim has been overexposed to heat or has over exercised for his or her age and physical condition. Other conditions that can induce heat-related illnesses include stagnant atmospheric conditions and poor air quality.

A prolonged drought can have a serious economic impact on a community. Increased demand for water and electricity may result in shortages of resources. Moreover, food shortages may occur if agricultural production is damaged or destroyed by a loss of crops or livestock.

WHAT IS EXTREME HEAT?

Temperatures that hover 10 degrees or more above the average high temperature for the region and last for several weeks are defined as extreme heat. Humid or muggy conditions, which add to the discomfort of high temperatures, occur when a "dome" of high atmospheric pressure traps hazy, damp air near the ground. Excessively dry and hot conditions can provoke dust storms and low visibility. Droughts occur when a long period passes without substantial rainfall. A heat wave combined with a drought is a very dangerous situation.

Before Extreme Heat

    1. To prepare for extreme heat, you should:

    2. To begin preparing, you should build an emergency kit and make a family communications plan.

    3. Install window air conditioners snugly; insulate if necessary.

    4. Check air-conditioning ducts for proper insulation.

    5. Install temporary window reflectors (for use between windows and drapes), such as aluminum foil-covered cardboard, to reflect heat back outside.

    6. Weather-strip doors and sills to keep cool air in.

    7. Cover windows that receive morning or afternoon sun with drapes, shades, awnings, or louvers. (Outdoor awnings or louvers can reduce the heat that enters a home by up to 80 percent.)

    8. Keep storm windows up all year.

    9. Listen to local weather forecasts and stay aware of upcoming temperature changes.

    10. Know those in your neighborhood who are elderly, young, sick or overweight. They are more likely to become victims of excessive heat and may need help.

    11. Be aware that people living in urban areas may be at greater risk from the effects of a prolonged heat wave than are people living in rural areas.

    12. Get trained in first aid to learn how to treat heat-related emergencies

What you should do if the weather is extremely hot:

    1. Listen to NOAA Weather Radio for critical updates from the National Weather Service (NWS).

    2. Never leave children or pets alone in closed vehicles.

    3. Stay indoors as much as possible and limit exposure to the sun.

    4. Stay on the lowest floor out of the sunshine if air conditioning is not available.

    5. Postpone outdoor games and activities.

    6. Consider spending the warmest part of the day in public buildings such as libraries, schools, movie theaters, shopping malls, and other community facilities. Circulating air can cool the body by increasing the perspiration rate of evaporation.

    7. Eat well-balanced, light, and regular meals. Avoid using salt tablets unless directed to do so by a physician.

    8. Drink plenty of water; even if you do not feel thirsty. Avoid drinks with caffeine. Persons who have epilepsy or heart, kidney, or liver disease; are on fluid-restricted diets; or have a problem with fluid retention should consult a doctor before increasing liquid intake.

    9. Limit intake of alcoholic beverages.

    10. Dress in loose-fitting, lightweight, and light-colored clothes that cover as much skin as possible. Avoid dark colors because they absorb the sun’s rays.

    11. Protect face and head by wearing a wide-brimmed hat.

    12. Avoid strenuous work during the warmest part of the day. Use a buddy system when working in extreme heat, and take frequent breaks.

    13. Check on family, friends, and neighbors who do not have air conditioning and who spend much of their time alone.

    14. Avoid extreme temperature changes.

    15. Check on your animals frequently to ensure that they are not suffering from the heat. Go to a designated public shelter if your home loses power during periods of extreme heat. Text SHELTER + your ZIP code to 43362 (4FEMA) to find the nearest shelter in your area (example: shelter 12345).

For more information
Extreme Heat
Ready.gov